Fish-stop.



J. HUNTr FISH STOP.

APPLICATION FILED JULY 31.:911.

Patented Apr. 9, 1918.

4 SHEETS-SHEET l.

'sl' IMHIIHIIII H II hi1 In WITNESSES ATTORNEY I Mh n BY zgu w J. HUNT.

HSH STOP.

APPLICATION man JULY 3!. 19:1.

1,261,936. Patent/ad Apr. 9,191&

4 SHEETS-SHEET 2- WITNESSES VENTOR ATTORNEY J. HUNT.

FISH STOP.

APPLICA HON FILED JULY 3|. 19]]- 1,261,936. Patented Apr. 9, 1918.

4 SHEETS-SHEET 3- WITNESSES Z g? "Q U av W ATTORNEY V I TOR 3 777.6 41?J. HUNT.

HSH STOP.

Patented Apr. 9, 1918.

4 SHEETS-SHEET Q .A n. M.

INVENTOR (hi/t 1/1002" w '25 In ATTORNEY APPLICATION FILED JULY 3|.1911-WITNESSES JOHN HUNT, OF DUMONT, COLORADO.

FISH-S5301.

Specification of Letters Patent.

Patented Apr. 9, 1918.

Application filed July 31, 1917. Serial No. 183,793.

To all whom it may concern:

Be it known that I, J OHN HUNT, a citizen of the United States, residingat Dumont, 1n the county of Clear Creek and State of Colorado, haveinvented certain new and useful Improvements in Fish-Stops, of which thefollowing is a specification.

This invention relates to an improved fish stop for use in connectionwith an irrigating ditch and the principal object of the invention is toprovide a fish stop which may he placed in the mouth of the irrigatingditch and serve to keep small fish out of the same, a movable screenbeing mounted in the trough of the guard and a sweeper being providedfor the screen, the sweeper and screen being actuated from a crank shaftcarrying a paddle wheel turned by the water flowing through the trough.

Another object of the invention is to S0 construct this screen that itmay be formed of a plurality of sections extending longitudinally of thetrough and upwardly therein toward the outlet end, the upper end portionof the screen being connected with a crank shaft or driven shaft rotatedfrom the crank shaft carrying the paddle wheel.

Another object of the invention is to so mount the sweeper that it willhave movement transversely of the trough and to further so mount thissweeper that its movement will be in operative relation to the overflowoutlet through which the fish will pass into a spill way leading backinto the river.

Another object of the invention is to so construct this paddle wheelthat it may be vertically adjusted and to further so con.- struct itthat the blades thereof may be lengthened when desired,

Another object of the invention is to so construct the device that itWill be eflicient in operation, the sweeper keeping the screen clear oftrash and the trough being so constructed that the flow of water throughthe same may be regulated through the medium of gates olaeed at theinlet and outlet and at the overflow or spill-way outlet.

This invention is illustrated in the encompa ying drawings, wherein:

Figure 1 is a view showing the improved fish stop in s de elevation;

Fig. 2 is a view in end elevation looking at the inlet end of the fishstop,

Fig. 3 is a view in end elevation looking at the outlet end of the fishstop;

Fig. 4 is a top plan view of the improved fish stop,

Fig. 5 is a longitudinal sectional view through the improved fish stop,

Fig. 6 is a fragmentary top plan view showing the support for thesliding screen,

Fig. 7 is a longitudinal sectional view taken along the line T7 of Fig.1,

Fig. 8 is a longitudinal sectional view taken along the line 88 of Fig.1,

Fig. 9 is a fragmentary View of the paddle wheel showing one bladeextended or built up for additional length.

This fish stop is provided with a trough or body 10 having end walls 11and 12 in which are provided the inlet 13 and the outlet 14; drop gates15 and 16 being provided for the inlet and outlet and suspended throughthe medium of the threaded stems 17 and 18 which stems are rotatablysupported by cross bars 19 and have their upper end portions formed intocrank handles 17 and 18. By turning these crank handles, the gates maybe ra sed or lowered and thus the flow of water through the troughregulated. The spill-way or overflow outlet 20 is provided in one of theside walls of the trough and is provided with a gate '21 slidablymounted as shown in Fig. 7 and Pro d d th a hang bar or ead 22 wa hostedwith the gate by rods 23 and engaged by a threaded stem 24. Thisthreaded stem 24 is rotatably supported by a cross bar 25 and whenturned will raise or lower the gate far the spill-way. From aninspection of Fig. 4, it will be readily seen that this guard is placedat the mouth of the irrigating ditch 26 so that ater flowing from theriver into the irrigating ditch must pass through the trough. It will befurther noted that the spill-way outlet is positioned to communicatewith the spillway or trough or return trough 27 which will lead back tothe river and return the fish which enter the trough from the river. Inorder to ermit of easy access to the crank handles 1 and J 18' therehave been provided platforms 28.

and 29 hingedly connected with the end por tions of the trough andsupport d when in a lowered position by the brackets 30.

The screen is rovided with upper and lower sections indicated ingeneralziby the numerals 31 and 32 having their adjoining ends ivotallyconnected as shown at 33, so that t e screen may bend at a pointintermediate its len th when in movement. A shoe 34 is provit ed at thebottom of the screen to engage the bottom of the trough thus protectingthe screen from wear and further preventing the longitudinally extendingstrips forming the screen from cutting through the bottom of the trough.Abutment lugs 35 and 36 are carried in the bottom of the trough toengage theshoe and thus limit the sliding movement of the screen in thetrough. This screen rests upon a frame or rack shown in Figs. 5 and 6,the rack having side bars 37 and cross bars 38, 39 and 40. It should benoted that the cross bars 39 and 40 are provided with teeth 39' and 40'extending between the strips forming the screen and thus serving asguiding means for the screen and further serving as means for removingtrash which might collect be tween the strips of the screen. A crankshaft 41 is mounted in bearings 42 and pro vided with crank extensions43, 44 and 45 with which are connected links or pitman rods 46, 47 and48. This itman rod 48 is pivotally connected witht e upper end of thescreen and as the crank shaft rotates, the screen will thus be movedlongitudinally of the trou h. In order to clean the screen and furtherin order to move the fish toward the spillway outlet 20, there has beenprovided a. sweeper 49 hingedly connected with an oflset 50 and engagedby a link 51 carried by the crank shaft 52. This crank shaft isrotatably carried by the bracket 53 and is engaged by the pitman rods 54leading from the crank extensions 55 of the crank shaft or paddle shaft56. The pitman rods 46 and 47 are also connected with these crankextensions 55 and it will thus be seen that this paddle shaftwillconstitute a driving shaft from which movement may beimartedto thescreen and sweeper. The padle arms 57 radiate from the shaft and carryheads 58 extending in the'path of the water flowing through thetrough"so that when this device is in operatiomthe paddle wheel will be rotatedthus rotating the drivin shaft 56. It should be noted that this drivingshaft" is mounted in bearing blocks 59 slidably mounted in pockets 60formed in the sidewalls of the trough and engaged by threaded sus endedstems 61 thus permittin the bearing blocks to be adjustedvertical i tohold the blades of the paddle Wheel at t e proper distance fromthebottom "of the trough; Froman inspection of Fig. 9 it will be readilyseen that if desired, the arms of the paddle wheel can befo'rmed inseparable sections connected by bolts or 0t er removable fasteners 63thus permitti gfg the arms to be extended.

his fish'stnp'will be placed at the inlet of the irrigating ditch andthe water flowing from theriver into the irrigating ditch may flow throuh the trough and engage the paddle whcdl thus rotatin the paddle wheeland the crank shaft or riving shaft carr ing the paddle wheel. Thepitman rods 46, 4 and 54 will impart rotary movement to the crank shafts41 and 52 and as these crank shafts rotate, sliding movement will beimparted to the screen and oscillating movement will be imparted to thesweeper or brush 49. The space between the strips forming the screenwill be sufficient to per mil; the water to readily flow through thetrough but will not be large enough to permit the fish to pass. Thesefish together with any trash which may collect in the trough will beswept through the spill-way outlet by the sweeper and will be returnedto the river through the spill-Way. It will thus be seen that a veryeflicient fish stopping device has been provided.

l hat is claimed is:

1. A fish guard comprising a trough having an inlet and an outlet, ascreen mounted in the trough for free sliding movement longitudinally ofthe trough, a sweeper pivotally mounted in the trou h for oscillatingmovement transversely of the trough in operative relation to the screenand between the screen and the inlet of the trough, and means forimparting movement to the'screen and to the sweeper.

2. A fish guard comprising a trough having an inlet and an outlet, ascreen slidably mounted in the trough, a sweeper movably mounted in thetrough in operative relation to the screen, and means for impartingmovement to the screen and sweeper.

3. A fish guard comprising a trough having an inlet and an outlet and aspill-way at a point intermediate the inlet and outlet, a screenslidably mounted .in the trough in operative relation to the spill-way,a

trough, and means for supporting the screen and imparting reciprocatingmovement thereto as water passes through the trough.

5. A fish stop comprising a trough having an inlet and an outlet and aspill-Way at a point intermediate the inlet and the outlet,a supportpositioned in the trough ad acent the spill wayfia screen slidablycarried by the support and formed of longitudinally extending stripspositioned in spaced relation, the support being provided With fingersextending between the strips to guide the sliding movement of thescreen, a crank shaft rotatably connected with said trough, a linkpivotally connected with the crank shaft and with the upper end portionof the sliding screen, and means for imparting rotary movement to thecrank shaft.

6. A fish guard comprising a trough having an inlet and an outlet and aspill-way at a point intermediate the inlet and the outlet, a screenslidably mounted in the trough at a point adjacent the spill-Way andformed of upper and lower sections pivotally connected, and meansconnected with the screen for imparting sliding movement thereto asWater passes through the trough.

7. A fish guard comprising a trough provided with an inlet and an outletand a spillway at a point intermediate the inlet and outlet, a screenslidably mounted in the trough in operative relation to the spill-way, asweeper pivotally mounted in the trough in operative relation to thescreen, a paddle wheel including an axle, and means for transmittingmovement from the axle of the paddle wheel to the sweeper and screen asthe paddle Wheel rotates.

8. A fish guard comprising a trough having an inlet and an outlet and aspill-way, a screen slidably mounted in the trough adjacent thespill-way, for movement longitudinally of the trough, and means forsupporting the screen and imparting reciprocating movement thereto aswater passes throu h the trough.

9. fish guard comprising a trou h having an inlet and an outlet, ascreen s idably mounted in the trough at a point intermediate the inletand outlet and formed of upper and lower sections pivotally connected,and means connected with the screen for imparting sliding movementthereto as Water passes through the trough.

In testimon whereof I aflix my signature in presence 0 two witnesses.

JOHN HUNT.

Witnesses:

AnoLPH NELSON, E. E. MCCLELLAND.

Copies of this patent may be obtained for five cents each, by addressingthe "commissioner of retontl.

Washington, D. 0."

